Hi,
I've been interested in this thread as I have a shorted G5500 elevation
motor. I reported this several months ago, and found that it was a
fairly common problem.
I'm waiting for warmer WX when I plan to replace it. I'm wondering
whether there have been any reports of the over heating being caused by
failure of the yahoo control unit or tracker interface. Perhaps sticking
relays or electronics. I'm using the LVB tracker.
I can see some situations where the micro-switches inside the rotator
could fail to prevent damage.
The thermal cut-outs suggested earlier in this thread looks attractive.
I was also thinking about a PIC solution. As these rotators are now
very expensive, and it's a major task for me to install the replacement,
I don't want to risk another burned out motor.
Any thoughts?
73 Clive G3CWV
Hitchin, North Hertfordshire, UK